For the 2026 school year, there are 2 public preschools serving 277 students in Custer County, ID.
The top-ranked public preschools in Custer County, ID are Challis Elementary School and Mackay Elementary School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Custer County, ID public preschools have an average math proficiency score of 31% (versus the Idaho public pre school average of 44%), and reading proficiency score of 47% (versus the 53% statewide average). Pre schools in Custer County have an average ranking of 3/10, which is in the bottom 50% of Idaho public pre schools.
Minority enrollment is 12% of the student body (majority Hispanic), which is less than the Idaho public preschool average of 28% (majority Hispanic).
Best Public Preschools in Custer County (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Challis Elementary School
(Math: 35-39% | Reading: 50-54%)
Rank:
Rank:
5/
Bottom 50%10
950 Bluff Avenue
Challis, ID 83226
(208) 879-2439
Challis, ID 83226
(208) 879-2439
Gr: PK-6 | 166 students Student-teacher ratio: 14:1 Minority enrollment: 11%
Rank: #22.
Mackay Elementary School
(Math: 20-24% | Reading: 40-44%)
Rank:
Rank:
2/
Bottom 50%10
400 East Spruce Street
Mackay, ID 83251
(208) 588-2834
Mackay, ID 83251
(208) 588-2834
Gr: PK-6 | 111 students Student-teacher ratio: 14:1 Minority enrollment: 14%
Custer County Public Schools (Closed)
School
Location
Quick Facts
Po Box 304
Challis, ID 83226
(208) 879-5063
Challis, ID 83226
(208) 879-5063
Gr: 6-8 | 129 students Student-teacher ratio: 16:1 Minority enrollment: 9%
Hc 67 - Box 586
Clayton, ID 83227
(208) 838-2244
Clayton, ID 83227
(208) 838-2244
Gr: K-5 | 7 students Student-teacher ratio: 7:1
Frequently Asked Questions
What are the top-ranked public preschools in Custer County, ID?
The top-ranked public preschools in Custer County, ID include Challis Elementary School and Mackay Elementary School.
How many public preschools are located in Custer County?
2 public preschools are located in Custer County.
What is the racial composition of students in Custer County?
Custer County public preschools minority enrollment is 12% of the student body (majority Hispanic), which is less than the Idaho public preschools average of 28% (majority Hispanic).
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